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首页> 外文期刊>Arabian Journal for Science and Engineering >Seismic Demand for Low-Rise Reinforced Concrete Buildings of Islamabad–Rawalpindi Region (Pakistan)
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Seismic Demand for Low-Rise Reinforced Concrete Buildings of Islamabad–Rawalpindi Region (Pakistan)

机译：伊斯兰堡-拉瓦尔品第地区（巴基斯坦）的低层钢筋混凝土建筑的地震需求

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摘要

Determination of appropriate seismic demand is important for deriving reliable seismic forces for use in structural design and vulnerability assessment. Demand can be defined by either probabilistic or deterministic approaches depending on the use of the assessment. The use of probabilistic or deterministic approaches depends on the level of the assessment since deterministic can mostly be used for single structures whereas probabilistic for city or country level assessment. This paper presents demand characterization which is based on results of existing seismic hazard studies and local tectonic features around Islamabad-Rawalpindi region (study region) in Pakistan. Existing seismic zoning maps and recent probabilistic seismic hazard studies are reviewed, and the findings are used to quantify and compare the demand for a typical low-rise reinforced concrete building. As another option, deterministic demand is defined through spectra using suitable attenuation relationship which is assessed and validated using the Kashmir earthquake and other similar earthquakes data. Deterministic spectra for study region are generated by considering the critical local tectonic features. Federal Emergency Management Agency (FEMA 356) approach is used for smoothening of deterministic spectra, and the new spectral corner periods are calculated.
机译：确定适当的地震需求对于推导可靠的地震力以用于结构设计和脆弱性评估非常重要。可以通过概率或确定性方法来定义需求，具体取决于评估的用途。概率性或确定性方法的使用取决于评估的级别，因为确定性方法通常可用于单个结构，而概率性可用于城市或国家级评估。本文根据现有地震灾害研究的结果以及巴基斯坦伊斯兰堡-拉瓦尔品第地区（研究区域）的局部构造特征，提出了需求表征。审查了现有的地震分区图和最近的概率地震危险性研究，并将这些发现用于量化和比较对典型的低层钢筋混凝土建筑的需求。作为另一种选择，确定性需求是通过使用合适的衰减关系通过频谱定义的，衰减关系使用克什米尔地震和其他类似地震数据进行评估和验证。研究区域的确定性光谱是通过考虑关键的局部构造特征生成的。联邦紧急事务管理局（FEMA 356）方法用于对确定性频谱进行平滑处理，并计算新的频谱转折期。

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